btrfs: Fix the wrong condition judgment about subset extent map
Previous commit: btrfs: Fix and enhance merge_extent_mapping() to insert best fitted extent map is using wrong condition to judgement whether the range is a subset of a existing extent map. This may cause bug in btrfs no-holes mode. This patch will correct the judgment and fix the bug. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
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@ -6586,7 +6586,7 @@ insert:
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* extent causing the -EEXIST.
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*/
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if (start >= extent_map_end(existing) ||
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start + len <= existing->start) {
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start <= existing->start) {
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/*
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* The existing extent map is the one nearest to
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* the [start, start + len) range which overlaps
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